Ext.onReady(function() {
	
			var loader = new Ext.tree.TreeLoader({
						url : "../../js/V009/treedataV009.js"
					});
					
			var root = new Ext.tree.AsyncTreeNode({
						id : "root",
						text : "根节点",
						loader : loader
					});
					
			var tree = new Ext.tree.TreePanel({
						renderTo : "tree",
						root : root,
						width : 100
					});
					
		});